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We narrowed to 287 results for: PREP

Showing: 101 - 120 of 287 results

  1. Droplet Digital PCR for AAV Quantitation

    Type
    Blog Post
    Published
    Jan. 16, 2020, 2:18 p.m.
    ...vector preparations, we have used quantitative PCR to evaluate the physical titer of our preps. We often... for ddPCR set-up. Prepare the master mix in a separate area from where you prepare your sample dilutions...

  3. Tips for a 1st time AAV user (by a Rookie AAV user)

    Type
    Blog Post
    Published
    Oct. 23, 2018, 11:49 a.m.
    ...genome-containing viral particles that are present in an AAV prep. AAV samples are first DNaseI digested to remove...still necessary. To save time and money, I like to miniprep 5 mL of my AAV transfer plasmid cultures and then...pellet for the remainder of the cultures and later maxiprep only the cultures with intact ITRs. I use a spreadsheet...culture supernatant because it’s time consuming to prepare the 40% PEG solution. PEG takes several hours on.... Rather than investing all of this effort in preparing reagents, I choose to only harvest the cell pellet...separate out contaminants from an impure AAV preparation. 15%, 25%, 40%, and 60% iodixanol solutions are...double-check that the iodixanol gradient solutions were prepared correctly. When aliquoting purified and buffer...

  4. Neuronal labeling with Spaghetti Monster

    Type
    Blog Post
    Published
    Aug. 14, 2018, 12:42 p.m.
    ...Addgene Browse all AAV vectors Find ready-to-use AAV preps ...STORM imaging, and electron microscopy. Sample preparation for these techniques sometimes makes it more ...retain their ability to be detected after sample preparation better than standard proteins tags like GFP. ...

  5. AAVs in Retinal Gene Therapy

    Type
    Blog Post
    Published
    July 31, 2018, 12:55 p.m.
    ... Find AAV plasmids Find ready-to-use AAV viral preps Browse all viral vectors ...

  6. Tips from the Repository Trenches: Using Barcodes to Track Samples

    Type
    Blog Post
    Published
    Oct. 6, 2015, 2:30 p.m.
    ...sent from depositors, bacterial glycerol stocks, prepped DNA ready for our quality control processes - all...The lab prepares bacterial glycerol stocks on Fridays. From each overnight culture, we prepare three sets...sample is barcoded, the lab team takes over and prepares the sample for entry into Addgene’s repository...is contaminated. We use filtered pipet tips and prepare fresh media with antibiotics at each stage. The...Addgene Get help with plasmid transformation, preparation, and analysis from our protocols and molecular...

  7. Troubleshooting and Optimizing a Western Blot

    Type
    Blog Post
    Published
    Sept. 17, 2024, 1:15 p.m.
    ...! Now, let’s head west, intrepid reader! Protein Prep The first step in any western blot is to lyse your...minutes) at 37 °C, if you suspect aggregation in your prep. If your proteins are the wrong size on your gel...

  8. QC Sequencing Technologies at Addgene

    Type
    Blog Post
    Published
    July 15, 2025, 1:15 p.m.
    ...also be time-consuming, depending on the library prep and instrumentation used.  Here at Addgene, we sequence...

  10. Hot Plasmids: Fall 2024

    Type
    Blog Post
    Published
    Nov. 21, 2024, 1:30 p.m.
    ...some of the new plasmids, antibodies, and viral preps in the repository through our Hot Plasmids articles...

  12. AAV Titers: Where Do They Come From And What Do They Mean?

    Type
    Blog Post
    Published
    Nov. 15, 2017, 3 p.m.
    ...Taylor et al., 2017). However, because purified AAV preps contain similar and low levels of background protein...vector preparations. Addgene has used this method to generally validate our viral vector preparation protocol...al., 2010). The specific infectivity of viral preparations is defined by the ratio of physical viral particles...viral capsids in representative viral vector preparations are genome-containing (Figure 1).    ...Electron micrograph of an Addgene AAV viral vector preparation after negative staining. Empty vector particles...viral service, we currently titrate AAV vector preparations by qPCR. To ensure accurate and reliable results...

  13. Site Directed Mutagenesis by PCR

    Type
    Blog Post
    Published
    Aug. 2, 2016, 2:30 p.m.
    ...product (see figure). Template A high purity plasmid prep significantly increases the success rate of site...’ll want to steer clear of these strains when preparing the plasmid template for site directed mutagenesis...

  14. Plasmids 101: E. coli Strains for Protein Expression

    Type
    Blog Post
    Published
    Feb. 10, 2015, 3:06 p.m.
    ... auxillary plasmids may be isolated during the prepping process. How does inducible expression work? As...) General protein expression  m15 pREP4*, ** Kanamycin (pREP4) Cis-repression of the E. coli T5 promoter...similar), inducible under IPTG (lac repressor on the pREP4 plasmid). Expression vector cannot have p15A origin...the strain. Conversely, other strains such as M15(pREP4) use a lac repressor to act directly on the expression...

  16. Plasmids 101: Common Lab E. coli Strains

    Type
    Blog Post
    Published
    Nov. 7, 2014, 2:56 p.m.
    ...recombine. This strain is endA+, so column-based DNA preps require an additional wash step. F- glnV44 recA13...cloning, routine cloning, cloning unstable DNA, preparing unmethylated DNA, and more. Many mutations that...Consequence dam DNA adenine methylase mutation (GATC) Preparing unmethylated DNA, important when trying to cut... dcm DNA cytosine methylase mutation (CCWGG) Preparing unmethylated DNA, important when trying to cut...restriction enzymes to cut the plasmid after preparation. rpsL thr leu thi lacY galK galT ara tonA tsx...

  17. Hot Plasmids: Summer 2024

    Type
    Blog Post
    Published
    Aug. 27, 2024, 1:15 p.m.
    ...some of the new plasmids, antibodies, and viral preps in our repository through our Hot Plasmids articles...
Showing: 101 - 120 of 287 results